In the reaction sequence,

X is

• cyclohexanone

• caprolactum

• HO(CH₂)₆NH₂

• Hexamethyllne disocyanate

A positive carbylamine test is given by

I. N, N-dimethylaniline

II. 2, 4-dimethylamine

III. N-methyl-o-methylaniline

IV. p-methylbenzyl amine

• (II) and (IV)

• (I) and (IV)

• (II) and (III)

• (I) and (II)

Identify the final product B of the reaction

C₆H₅COOH + NaH$\stackrel{*}{\mathrm{C}}$O₃ → gas (A) $\underset{{\mathrm{H}}_2{\mathrm{O}}^{+}}{\overset{{\mathrm{CH}}_3\mathrm{MgBr}}{\to }}$ (B)

Here, $\stackrel{*}{\mathrm{C}}$ = C¹⁴

• $\stackrel{*}{\mathrm{C}}$H₃COOH

• C₆H₅$\stackrel{*}{\mathrm{C}}$OOH

• CH₃$\stackrel{*}{\mathrm{C}}$OOH

• H$\stackrel{*}{\mathrm{C}}$OOCH₃

The reactant X in the reaction

X $\underset{({\mathrm{CH}}_3\mathrm{CO}{)}_2\mathrm{O}}{\overset{{\mathrm{CH}}_3\mathrm{COONa}}{\to }}$ Cinnamic acid is

The compound B is

CH₃CHO + HCHO $\underset{\mathrm{Heat}}{\overset{\mathrm{Dil}. \mathrm{NaOH}}{\to }} \mathrm{A} \underset{{\mathrm{H}}_3{\mathrm{O}}^{+}}{\overset{\mathrm{HCN}}{\to }} \mathrm{B}$

The structure of the compound B is

• CH₂=CH-CH(OH)-COOH

• CH₂=CH-CH(CN)-OH

• CH₃-CH₂-CN(CN)OH

• CH₃-$\underset{\mathrm{Cl}}{\overset{\mathrm{CN}}{\underset{\left|}{\overset{\right|}{\mathrm{CH}}}}}$-COOH

47.

Which of the following compounds is most acidic?

• 

• 

• 

• Cl-CH₂-CH₂-OH

Phenol + CCl₄ + KOH → X; 

Which of the following statement is true for X?

• It gives effervescence with NaHCO₃

• Gives silver mirror with Tollen's reagent

• Does not give the red colour with FeCl₃

• All of the above

Which of the following is bacteriostatic?

• Penicillin

• Erythromycin

• Aminoglycoside

• Ofloxacin

Out of

Relative stabilities order is

• 4 < 2 < 3 < 1

• 2 > 4 < 3 < 1

• 4 < 2 < 1 < 3

• 2 < 4 < 1 < 3